Ore dump-car.



5 SHEETSSHEET l.

C. H'. CLARK.

ORE DUMP CAR.

Awucm'mre meu on?. 5, :90s.

` WETNESSES C. H. CLARK.

Patented Apr. 2o, 19151 5-BEEBTS-8HBET 2.

C. H. CLARK.

vORE DUMP CAR.v

APPLICAUON man oc. 5, 1908.

.Patented A311226, 19H).

C. H. CLARK.

ons DUMP CAR. APPLICATION FILED 00115. 1908.

. v Patented Apr.20,1915..

5 SHEETS-SHEET 4.

mvENToR WITNEESES Qfwwff C. H. CLARK.

ORE DUMP CAR.

APPLxcAHoN man GCT. 5. 1908.

Fai;

toer-reo s CHARLES H. CLARK, GF CRAFTN, PENNSYLVANA, SSIIGNUR T0 CLARK CAR CMFAN'SZ', GLF PITTSBURGH, PENN isses?.

Speeieetion oi. Letters Patent. .implication tiles October 5, 181%. Heriel No eti.

To all whom t may concern I Be it knom that i, CHARLES H. CLARK,

'in the county of Allegheny and State of Pennsylieliie, lieve vented eerteiii .new and. useful 'improve ments in re Dump-Cars, oi' .Wloielfl lille-tot lowing is e specicetion,

Iii?

' move bodily The doors are normally inclined, snol 'e fee `the invention is' the manipulation oi4 the door,

" tively smell em'oimt of stroetiiroi-iiiete @ne object of this invention Ais to so arrange the doors of sin-wore or other dump ser as to provie' 1e bottom or discharging ope1iin# oi large eree.-

lhe invention is here of'l doors which close togetherot the center line oi" the cer and which when opening toward the opposite csr-sides.

ture of the doors in such their Ainclination their lower or inner" portions vand raising theirouterportions. Located at the axial manner that when opening 'line of these oscillating movements are the oormeotions with the doorshi'fting. ineehfr nisms, the verratogement being suoli that the shiftiog deviees move in horizontal planes, in the present embodiment vbeing eetueted by screw shafts extenilin'g transversely of tigeczir. Many deteilsinvoiving striioturei ixii previamente ere included in this geo erel pleo oi? f notion.

lith the doors 'erreiieetl iii eoooriioooe with the-present invention seele. loorlies e defiite .axis of rotation located elle eenw ter of its support. center line of the doorsopportecifioiid, with suoli exis moving sloeg; suoli e litre (iii the present embodiment efiiorisiootol linx.) se will' maintain. a, constantly' freeing ongle with regard. to

, .es further purpose oit the invention is to so ooaistriict the oer body enel the doors :is to glee eecess to the interior for the purpose ot 'poking and loosening ore or other me' teriei which has become frozen, or lisis from other causes solidiiied so este 'move either sliggishly or not ai; all when the doors are opened.

A further characteristic of the :inventioi'i4 is the mode ofconstructingtlie frame of the ear, particularly with reference to taking care of the droit forces communicated. from the tirait beams, whereby enexceptioiislly strong construction is secured freres embodied in e pair is increased by depressingood relatively near the' the friction of the ies/l on missies ses. se, wie.

this :testare possessing the double adventege of .minimizing both the cost and the weight.

.lo 4tlie accompanying drawings, Figure 1. 1s e view partly iii side elevation and partly vertioelseotioo of e dump car 4elilbolying toe invention, View being teken through the center of the.

cer. 2 is e viewpartly in endzelevsl;

tion ood partly in Cross seotio'n, the sectional port being oo iine 2`2 of Fig. l. Figi? is e vertical erossseetion on line 3 3 of Fig.'

l. Fig. is e sectional pien on line H of Fig. L lfig's. 5, 6 enel v7 the floor and floor-operating mechanism.

.The invention is hereshown. embodied in a single-hopper cer, which While designed especially for service in hauling ore, may be ,modified es required for various services, ,and the novel feetures'ma in eers of many different esigns.

,Referring to the drawings, 2 designates the two longitudinal sills of thecar, which in the present adaptation ere located etl the `extreme outer sides of the frame ood,'to' getlier with the hoppeoinelosi-ng side girders, transmit the draft forces from one end oi' the oer to the othere The Sills'are prefer.- sloly in the form of inverted channels, and are here shown terminetiiig :it holsters 3.

it' is characteristic. of the invention that the sectional portion of the.

' be incorporated y are detail views of i droit Vloeeizos to longitudinal sills 2 vby e' hovel. arrangement of framing which requires e relatively small and by' which tlie'strengtli of materiels neoessery; in other features ofthe eonstructio' is utilised which otherwise Wouldbe dor# moet. This is accomplished by two opposed vor reversely acting ,foreetransmitting lrreciogsoiie in tension'end the other iin compressioof, end-so arranged' that each fully eouiiteraots tlieotlier. Strains. which otherwise Would-be excessive are thus neutralized, end hence less metal is required than though either the fullv tension' 'or compression strain had to be teken care of.' l i amount of metal lo the ooiistruetioo here shown this fea f ture is embodied in two reversely arranged l-shaped trusses und. 4c at opposite 'sides of bolster 3, the .letter constituting a tie or ohord'ooioimon to'liotli, whereby its latent .strngtlifstreiigth riot utiiized in performing'the ioiiotioi'is of e bolster--is availed of. u

leoli truss is seeiireti et its spes to draft lieesiis truss soembers if' limiting therewith at its juncture with buffer y forces are seldom compression strains result "'ylVhen the draft forces are 'in tension, the action of thetwo truss bracings-are the /reverse of that above d beams 6, and truss members 4 secured to thev inner extremities of lthe draft beams. Compression draftforces are much higher than those communicated in tension, being frequently as high as 500.000 pouiids, while the tension 'above 100,000 pounds. The improved construction provides a very simple and eicient means for taking care of these forces. i

The compression forces are communicated to the draft beams through the draft rigging"l (not shown) connected to the usual draft lugs 5.

verst? of the outer truss 1n compression, with their divergent endsy held 'from 'parting by'bolster 3 which is therebyplaced in tension. A reverse action Atakes 'place in members 4 of the inner truss, the same forces which place theouter truss in compression setting up tension strains in members et, and vin bolster 3.

escribed, 'the outer truss 7 then .actlng in tension, and inner truss 4 in compression. Hence, whether the draft forces are compression or tension, two

independent and reversely acting systems of bracings are alwaysdoing duty, and while reverse in action they cooperate in such manner 'that the compression strains oi.E one sys- .tem counteract the tension strains of the y other, withjthe result that less frame material is required to transmit the forces than would be necessary if the full compression and' tension forces of the bracing had to he taken care of. v

The upper portions of the hopper-inclos ing girders B'define vthe lmaximum width el* the car. The lower portions ot these girders are deflected inwardly a distance equal to the Width of sills 2, thus giving the hoi pen its slight flare, as shown. The side p .tes are riveted to the inner flanges ot' sills 2, and are projected downwardly therefrom a short distance, preferably vertically` as indicated at 10, to forni opposite sides ot the hopper mouth.

Each end wall of the hopper consists of two slightly separated plates 11 which slope downward andinward, their lower extremities forming the ends of the hopper mouth. The upper portions of these'plates are connected by the splice. plate 11', and their lower portions by the downward flange 8 of gusset S, the latter located at the juncture of truss arms Ail and draft beams 5.

The doors are normally inclined toward the centerline oit' the car and are movable bodily in the di rcction of the car sides when opening and closing, with provision for in creasing the inclination ol. each door as it opens, such increased inclination being had The compression strains, imartedfthrough the draft lugs, place ,mem`A during the opening movement by lowering cally to provide poking openings or spaces' 13, the plane forming the outer or upper portion 14.01: the bottom being uppermost and overlapping the lower portion 15 suliciently to prevent the material being transported from discharging outwardly between the tw'o bottom portions when the doors are, .l

closed.

Each of the door structures' consists of two upright'cnd members 16, cast. and. ofgeneral triangular forni, the base ol. the triangle being the innerl edge of the end member which stands vertical when the door is closed.. The lower edge of the end. member is flanged longitudinally7 at 1.7 and 18, said flanges overlapping-'each other and separated :it the overlap by a vertical offset which 'forms the poking space 13, above referred to, -langes 17 supporting part 14 of the door floor or bottom, and flanges 1S similarly supporting part 15, parts 14 and 15l consisting;r are riveted to the flanges, as shown, which are reinforced at thc center by braces 14." Each of the doors may he provided utits under side with atransverse reinforcement 10, here shown in thel form of a channel arranged edgcwise, and for securing theV same the lower edges oli'end Iuenibeisl may have the downward extensions 20 around which the channel. fits.

Rach of the doors is, in the design here shown, supported. ou four wheels, two of the wheels El being jecting from the innler portions of end members 16 near their upper edges, while si1nilar wheels 23 are carried by the outer portions of the end members. The inner wheels 21 travel' on the downwardly and outwardly inclined track sect-ions Q4. -These tracks consist of relatively short pieces of rails which extend through and are supported by.

the depending loops 25 with the rail inclined downwardly in oppcsitoflirections.

corresponding Each oli shafts preferably'- of plates which journaled to bosses 22 'proitively connected to the corresponding ends of the doors through the-medium of thread.- ed sleeves 31;` 'Secured to 'each lof vthese sleeves is a depending arm 32h^aving alate'rally projecting ,pintle 33 which operates in abearingll formed inthe toped'gel of end member 16" of the door. lnthe, present adaptation,`sliafts 28 are located behind the end portions,y of the hopper-\mouth and in .thevv plane of the draft sillsy 5, and hence being; at one side of 'the/vertical plane of the doors, arms 32 :trein-.inclined position, asshown'; y l f The pivotal connection with the `door is made at that point-on the latterwhich moves horizontally as the door opens and closes, or in othcrwords at 'the horizontally shifting axis ofoscillation of the door, so that hori- 'zontal movement of sleevel in either direc'- tion results in a corresponding inward or outward movementof the ment does'not I interfereswith, `rthe vvertical oscillation "determinedmhy the inclination of tracks 24C and 26. With the centerof oscillation shifting horizontally,l the` outer or upper portion yor edge of the door rises more portion lowers, and

abruptly than its inner hence tracks 26 have greater f inclination than tracks 2li., @wing to this the inclinaf. increased by the tion of the doors is greatl opening movement, falifor gial Wide fopenm ing'through which the'ore or other material is discharged from the relatively steep sides, Furthermore, holding the doors substantially balanced at all times so'ythat comparatively little force is through the slot and '40`on the outer side of the' latter.

- wardly over a required to operate them.

To prevent sleeves 3l from hindinw on the shafts, a traveling guidis provided which may consist 'of an upward forked extension 35 of arm 32, with a Wheel 36ffjo'urnaled on each extension and traveling in ^the inclined.l

trougli-shaped guide or channel 37 located behind end plateall of the hopper. The guide maybe slotted longitudinally at 38 and the spindles 39 of Wheels 36 projected provided with Washers Channel 37 in which the Wheels move and slot 38 for the Wheel spindles hold sleeve 31 absolutely parallel with shaft 28 so that there can be lno twisting or binding, this without interfering in the slightest degree with the longitudinal movement of the sleeve of the shaft. In addition to the provision for poking,` the ore or other material through door spaces 13, additional poking openings 4l may .he located in side girders 9 Wherever they may be found most expedien Two such open-l ings are here shown in each sidel ofpthelovver portion of the hopper, with an upwardly ulged pocket-like shield 4:2 extending upgreater portion ci' the open-- ing, said shield 13 so formed with relation to bottom 'parts door, which movei `zontal anis, and -ineans the arrangement resnlts in.

being so arranged, also space la and l5 ol. the door, as to inclose the angle oi'repose ofthe ore or other material hauled so that the latter will not discharge there' from. These poking spaces or openings aiiord ready access for poking orfstlrrlng frozen or calerl ore or other .material which if not broken up tends toretard the flow. y

1.,. An. inclined bodily roovahle door for `a dump car rotatable about ahorizontal anis and frequently completely olistructs the hop..v l

with said asis lined relatively to the door .i

approximately midway between its upper and lower edges.

' 2;' hn'inclined bodily movable door for a damp ear 'rotatable almnt4l a horizontal axis with said airis niovahle with the door and disposed approximately midway between the -upper and lovvenfedges'ol the door, and

means for causing said axis of rotation to move" horizontally as the door opens and closes. 3, A door'for dump cars movable-bodily, oppositely inclinedsupports for the outer and inner portions oi' the door on Which'the 'door moves. the door rotatable about `a lrori` forl moving the airis of rotation in 'a stra lght'line. 'lla A door for'dinnp-cars movable h'dily, oppositely inclined'supports lfor the outer and innerportions of the door, the @hierro`v tatahle on. a horizontal axis, and means for moving the axis of rotation in a horizontal plane.

' 5. A doorlfordurnp-Vcars movable bodily and rotatable between' its inner and outer edges aboutie horizontal anis, oppesitely inclined supports engaged hy the door at op- 'poslte sides oiitsa'sis of rotation and on ico which the doorgmoveaand'means for movf sleeve traveling; on the shalt, a guidevvay paralleling the shalt, and sleeve-holding means movable in the guidevvay,

8, Door actuating means fora dninp car comprising a screw shaft, sleeve traveling; parallelin sleeve, andI guidevvav..

a door operating on the shaft, a guidevvay the shaft, an arm carriedhy the wheels on the arm movable in the oi rotation together 'with the l lea' 9. llloor aatnating .means for a dump car compr-lenig a screw shaft, a door operating;

sleeve traveling on the shaft, 'a guidewayl having a flange and a slot parallel with each other and paralleling the shaft, an arm can ried by the sleeve, journal pins secured to the anni and movable in said slot, and wheels on the pins traveling on the said flange.

' l0. A dooil .for (l ump cars formed inv two Harige intermediate its ends and with theflange parts overlapping at the offset, and

'two upright end membeis plates secured to the flanges and spaced apart by the flange offsets to iorm :1. poking space.

13. A door for dump ears consisting of anged longitudinally, plates secured te the ianges, wheels mounted Von the end members, Isupports on which the wheels move for opening and closing the door, and door moving means.

lei. A dump car having poking openings in the sides thereof above the doorsy doors for dumping the contents of the car, and pokingpopenings in the doors.

In testimony whereof I slix my signature in presence of two Witnesses.

CHAR ES H. CLARK. Witnesses: 

